<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no">
    <title>判断手机是否安装微信</title>
</head>
<body>
<script src="/static/js/common/Monitor.js"></script>
<a href="javascript:testApp('weixin://')" class="dl-btn" id="download">打开微信</a>
<a class="btn-green" id="getBrandWCPayRequest" href="https://wx.tenpay.com/cgi-bin/mmpayweb-bin/checkmweb?prepay_id=wx261121328079544fceb8f2c72699851424&amp;package=2486253093&amp;redirect_url=http%3a%2f%2fwxpay.wxutil.com%2fmch%2fpay%2fh5jumppage.php">立即购买</a>
<script>
    function testApp(url) {
        var timeout, t = 1000, hasApp = true;
        setTimeout(function () {
            if (!hasApp) {
                //没有安装微信
                var r=confirm("您没有安装微信，请先安装微信!");
                if (r==true){
                    location.href="http://weixin.qq.com/"
                }
            }else{
                //安装微信
            }
            document.body.removeChild(ifr);
        }, 2000)

        var t1 = Date.now();
        var ifr = document.createElement("iframe");
        ifr.setAttribute('src', url);
        ifr.setAttribute('style', 'display:none');
        document.body.appendChild(ifr);
        timeout = setTimeout(function () {
            var t2 = Date.now();
            if (!t1 || t2 - t1 < t + 100) {
                hasApp = false;
            }
        }, t);
    }
    //判断访问终端
    var browser={
        versions:function(){
            var u = navigator.userAgent, app = navigator.appVersion;
            return {
                trident: u.indexOf('Trident') > -1, //IE内核
                presto: u.indexOf('Presto') > -1, //opera内核
                webKit: u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核
                gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1,//火狐内核
                mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否为移动终端
                ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端
                android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1, //android终端或者uc浏览器
                iPhone: u.indexOf('iPhone') > -1 , //是否为iPhone或者QQHD浏览器
                iPad: u.indexOf('iPad') > -1, //是否iPad
                webApp: u.indexOf('Safari') == -1, //是否web应该程序，没有头部与底部
                weixin: u.indexOf('MicroMessenger') > -1, //是否微信 （2015-01-22新增）
                qq: u.match(/\sQQ/i) == " qq" //是否QQ
            };
        }(),
        language:(navigator.browserLanguage || navigator.language).toLowerCase()
    }
</script>
</body>
</html>